As a major gathering place for urban migrants,urban villages have weak infrastruc-ture,where rainwater carries a large amount of pollutants during the formation of surface runoff,urban village initial rainwater pollution has become one of the main sources of urban river pollu-tion.This article introduces and summarizes the overall layout of the storage tank in Xin'an village and the processes of its interception system,flushing system,etc.,providing reference and guid-ance for the design of the storage tank,and providing a systematic solution for the urban village initial rainwater pollution control.